Two devices from Russia with tennis balls. 1. The world's first plywood tennis robot. (I think so.) Android, IR control, two step motors, servo, replacement head for 2 or 3 brushless motors, car battery. Requires completion but the 3D printer is determined to kill him. 2. Room game-simulator which needs only 1.5 sq. m. free. Working model. I use it for long Russian winters in a country house. Proved too hard for children,although intended as a children's game.

By the way, http://www.tennirobo.com has 120 balls per minute feeding speed, but it is just limited to this value in software, and can be increased up to 150 balls per minute But I don't think it's necessary...

By the way, http://www.tennirobo.com has 120 balls per minute feeding speed, but it is just limited to this value in software, and can be increased up to 150 balls per minute But I don't think it's necessary...

For the benefit of all our other members, please post in English, or at least post a translation.

We are talking about if the TenniRobo really able to feed balls with high speed frequency? Igorponger has doubts about it, and if the TenniRobo good for training process? He asked me to make video with 90-120 balls/minute series.As example, he showed video from South Korea - 30 balls for one boy with 90 balls/minute frequency.

Ok, I think it's correct question, and I have to make this video. But now I am in countryside and I have no table here (unfortunatelly). I'll do it probably on next week. For now, please look this video at 2:50 time position https://youtu.be/r_E93Cn9mCc It is the old version of robot, but it has the same feeding mechanism, as the TenniRobo now. On this video feeding frequency is about 90-95 balls/minuteNow TenniRobo has tank for 100 balls

I think the noise would drive you nuts, though... Sounds like a circular saw.

Iskandar

It's the truth. Two or three aircraft engine used in the work to produce the noise of an airplane taking off. Plus the resonance from the plywood body. The room sounds awful. But my tennis table stands in the open outdoor pavilion, and there the noise is not audible. However, in single shots the motors are switched off after a few seconds.Rate of fire is unlikely to be higher than 30-40 shots per minute. In the pipe under the tub only 3 balls. There are problems with the height of the bottom. But it's better than shooting one minute and five minutes, then pick up the balls. This is totally unacceptable. And I refused it at once. There are hundreds of such robots. What's the point of inventing another one like this?

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